<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>计算三角形面积</title></head>
<body>
<form action="getArea.jsp" method="post">
    <table>
        <tr>
            <th colspan="2" align="center">输入三角形的三条边长</th>
        </tr>
        <tr>
            <td>第 1 条边长：</td>
            <td><input type="text" name="a"></td>
        </tr>
        <tr>
            <td>第 2 条边长：</td>
            <td><input type="text" name="b"></td>
        </tr>
        <tr>
            <td>第 3 条边长：</td>
            <td><input type="text" name="c"></td>
        </tr>
        <tr>
            <td colspan="2" align="center">
                <input type="submit" value="确定">&nbsp;&nbsp;&nbsp;&nbsp;
                <input type="reset" value="重置">
            </td>
        </tr>
    </table>
</form>
</body>
</html>
